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| [No]Should I design an inverter? |
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| blueskull:
I've been suffering from power outages for a while thanks to the power company does nothing on maintaining their wires. I bought a Black and Decker 500W inverter just in case. Well, I had a chance to use it, as we had another power outage yesterday evening. To my surprise, it can not even power 2 22'' monitors, let along the computer. I searched on Amazon for some good deals, and this time I was focusing on higher quality pure sine wave ones. Unfortunately, none of the low power ones look well built -- I do not want to waste money on a well build 2kW+ system, I just want to get a high quality 500~600W one. Also, most cheap inverters use input ground as HV bus ground, that poses some safety hazard. I want one with its neutral wire connected to ground, or the HV subsystem completely isolated. So, should I spend some time on building a super high efficiency 600W inverter? I do have the technology to build a 96%+ efficiency one, but that will cost me some time, at least a week, 2 hours per day. Do you think it's worth it? New design thread started https://www.eevblog.com/forum/projects/weekend-project-pure-sine-wave-inverter/ . |
| Rerouter:
How about something like this? http://www.ti.com/lit/an/slaa602/slaa602.pdf Only painful part in my head would be the magnetics, as those tend to be expensive for those power levels, |
| NiHaoMike:
Check to make sure the inverter you have is not a fake? A real 500W inverter should have no problem running most home electronics. |
| MK14:
--- Quote from: blueskull on June 25, 2016, 01:56:04 am ---I've been suffering from power outages for a while thanks to the power company does nothing on maintaining their wires. I bought a Black and Decker 500W inverter just in case. Well, I had a chance to use it, as we had another power outage yesterday evening. To my surprise, it can not even power 2 22'' monitors, let along the computer. I searched on Amazon for some good deals, and this time I was focusing on higher quality pure sine wave ones. Unfortunately, none of the low power ones look well built -- I do not want to waste money on a well build 2kW+ system, I just want to get a high quality 500~600W one. Also, most cheap inverters use input ground as HV bus ground, that poses some safety hazard. I want one with its neutral wire connected to ground, or the HV subsystem completely isolated. So, should I spend some time on building a super high efficiency 600W inverter? I do have the technology to build a 96%+ efficiency one, but that will cost me some time, at least a week, 2 hours per day. Do you think it's worth it? --- End quote --- Obviously you used it in "500 Watt" mode ? NOT in "100 Watt" mode, via the car lighter input thingy and/or socket ? tl;dr It is limited to 100W, depending on how you connect it up (apparently). |
| rx8pilot:
I will only consider sine wave inverters for continuous use. Modified sine is a mess. Sent from my horrible mobile.... |
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